NCE Practice Question #nceprep: You are employed to evaluate moderately to severely retarded adults. Which of the following would give you the most accurate evaluation of their functioning? A CAT, B MMPI, C WAIS-R, D Vineland Social Maturity Inventory, Answer: D, This assesses both children & low-functioning adults. Thistests behavioral & social maturity via a semi-structured interview. The MMPI is inappropriate to use as a measure of maturity. WAIS-R measures intelligence.